Arnold, I have a collection of Pennsylvania Station photos, unfortunately not yet digitized. Grand Central was cool but Penn Station was my favorite. The glass ceiling of the concourse was quite the thing for a five year old, waiting at the arrival board for my grandmother to arrive from Raleigh on the Silver Meteor, a GG1 pulling in only feet away on the platform, dark except for the daylight over Tower A.
But here are some photos from 2017 around LA. Ignore old guy in photos.
Angel's Flight has one station.
A few shots of LA Union Station.
North Hollywood has a restored SP station now isolated from any tracks.